Liquid fuel burner of the pot type



Set. 6, 1949. P. GAINEY 2,481,104

LIQUID FUEL BURNER OF THE POT TYPE Filed May 25, 1945 4 Sheerjs-Sheec l ZiA-MJWQ P. GAKNEY ID FUEL BUR wt Wm.

LIQU NEH OF THE POT TYPE 4 Sheets-Sheet 2 Filed May 25, 1945 $619 r P. GAINEY LIQUID FUEL BURNER OF THE PQT TYPE 4 Sheets-Sheet 5 Filed May 25, 1945 P. GAINEY LIQUID FUEL BURNER OF THE POT TYPE Filed May 25, 1945 4 She ets-Sheet 4 T I @a a 3 a l Patented Sept. 6, 1949 UNITED STATES PATENT OFFICE 2,481,104 LIQUID FUEL BURNER OF THE POT TYPE Percy Gainey, Linden, N. C. Anhllcation May 25; 1945, Serial No. 595,779

This invention relates to an oil burning un aratus especially adapted for use in tobacco barns and the like for curing tobacco. The apparatusis also adapted for use in heating the interior of any enclosure such as tents, cottages. residences and the like.

This ap aratus is an improvement over the structure shown in my Patent No. 2,283,683 of June 30, 1942.

It is an object of this invention to provide an oil burning apparatus by which the emciency of the apparatus is greatly increased over and above the structure recited in my above nameu patent, and in which the oil consumption is materially reduced.

It is a further object of this invention to provide an apparatus which will "practically eliminate carbon deposits on the parts of the burner.

It is another object of this invention toprovide an oil burner adapted to be disposed in tobacco barns and the like for curing tobacco anuwhere'in the moisture released from the cured tobacco serves as oxygen and hydrogen for the burning of the flame, in that the barn can be tightly closed and the released moisture being driven out of the tobacco leaves will be fed into and below the burner and will therefore give the necessary hydrogen and oxygen to the burner to keep the flame going without the necessity of admitting so much outside air.

It is another object of this invention to provide a burner apparatus and housing therefor wherein suitable openings are provided for admitting air to and contiguous to the flame in the burner so as to wash the walls of the burner and the burner barrel with air and thus remove carbon therefrom before the same has had any chance to flenosit on the walls or the burner arch the walls of the burner barrel.

Some of the objects oi the invention havin been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which:

Figure 1 is a front elevation of the burner paratus and showin the housing for the burner which is enclosed within the apparatus;

Figure 2 is a horizontal sectional view taken substantially along the line 2 2 in Figure! and omitting the burner from the apparatus;

Figure 3 is a longitudinal sectional View taken substantially along the line 3-4 in Figure 1 01' along the line 3-3 in Figure 2 and showing the burner in elevation;

Figure 4 is a transverse section view taken 2 Claims. (Cl. 158 9-1) substantially along the hue L4 in Figure 5 and looking upwardly;

Figure 5 is a veftical sectional view taken substantialiy along the line 5--5 in Figure 6;

Figure 6 is a horizontal sectional view taken substantially along the line G- -t in Figure 3;

Figure '7 is a hour plan of a tobacco barn at other enclosure and showing my invention installed therein;

Future 8 is a side elevation of a tobacco barn with one side broken away showing another installation of my apparatus within a tobacco barn or other enclosure.

Referring more specifically to the drawings, the numeral 10 indicates an annular member having a plurality of openings ll therein and adapted to be submerged part way into the earthen floor of a tobacco barn and the like, and the upper edge of this annular member H1 is adapted to support a grid member 12, said grid member I? having an elliptical rib 13 joined together by a plurality of spider members {4, thus leaving a plurality of openings fo'r the air to pass therethrough. The grid 12 also has an aicuate rib 15 which surrounds a truncated barrel or housing 16 which houses an annular oil burner body ll which oil burner is adapted to rest on the grid 12 and to be surrounded at all times by the rib 13. The 'oil burner IT has connected thereto a pipe 18 which passes through a suitable opening 19 in the housing l6 and extends for some distance out from the housin'g 1'6 where it is bent as at 20 and then extends through the wall of the building to a suitable air mixer or carbui'etor 2| and the pipe is then connected to a suitable tank 22 for containing oil. A suitable valve 23 is provided or cutting the fuel supply on and hit from the oil burner.

The carburetor or air mixer 2| has a suitable flow control mechanism therein for re ulatin the flow of fuel to the oil burner. The housing It has a suitable door 25 which ma be removed when it is desired to install or remove the burner 11 as the burner 1 1 can be slid outwardly and forwardly out of the barrel it onto the forwardly projecting poi'tion of tfl grid 12. This is due to the fact that the pipe in will bend and have a sufficiently straight portion until the bend 20 occurs So that the pipe will slide in the opening I9 while the burner is moved from position A to position B in Figure 3. This enables the burner to he slid out of the ensuing" normally closed by door 25 and it can he ligted and placed in operation without the necessity of dropping bits of aper and the like in through a suitablebiaening in the housing It.

However, thehutlsing is has a suitable opening therein covered by a swingable door 2! so that the tender can open this swingable door and take a look inside of the housing it to see that the oil burner is operating properly without the necessity of opening door 25 and withdrawing the oil burner by suitable instruments from the interior of the housing I6.

The housing I is of suitable cast material and has cast integral therewith branches 30 and 3! extending in opposite directions and to which suitable pipes for radiating the heat to the interior of the building Within which the burner is located, can be positioned. The cast portions 30 and 3! have on each side thereof projections 32 to which are secured suitable upright bolts 33 and on the upper ends of these bolts is secured a suitable pan 34 which is broader and longer than the portions 30 and 3|, and suitable sand or earth 35 can be placed in this pan so as to shield the heated portions 30 and 3| from falling tobacco leaves and the like, so that if they should fall they would be caught on the-sand 35 and would not become ignited as they might be if they should fall onto the heated cast portions 39 and 3!.

Adapted to rest inside the rib l3 and on the spoke members .I4 is the annular burner pot IT. This comprises an outer annular wall 49 and inner annular wall 41 integral with each other at their lower portions and forming a central opening providing an annular oil cup 42 into which the pipe l8 conducts the oil to be consumed. The inner annular wall 4! is not circular but is composed of a plurality of hollow ribs 43 having arcuate outer walls 44 and radial side walls 45 and 46. The top portions of these ribs 43 are integral with a horizontal portion 41 which is also integral with the tubular flue 48 which has an opening 49 in its central upper horizontally disposed portion 59. The flue 48 with its opening 49 provides a secondary air flow to the burner.

The opening 49 provides a secondary air flow in the burner and in the space between the radial walls 45 and 46 of each rib 43 and in the horizontal portion 41 there is drilled primary air inlet opening 52. This allows air to pass upwardly inside of the burner and between the walls 44, 45, and 46 of the ribs and through the holes 52 into the combustion chamber. The portion 48 near its base has secondary series of primary air inlet openings in the form of a plurality of outwardly and upwardly directed holes 55 for admitting addition air to the combustion chamber and serving to cool the portion 48, and the air issuing through openings 55 and 52 serve to wipe carbon from the adjacent portions of the burner.

The radial walls 45 and 46 of the inner annular portion 4| are joined together by arcuate portions 53 and in these arcuate portions there are radially disposed the holes 59 which allow air to pass outwardly into the upper portion of the oil retaining annular portion 42. These materially aid in combustion and are in addition to the structure shown in my prior patent. They aid materially in reducing the formation of carbon on the interior of the annular oil cup 42.

In my above-named patent, the burner barrel is a cylindrical member and referred'to by reference character 38 and resting on top of the same is an annular wall portion 24. I have found 7 that a different type of burner barrel gives very much better results, not only in producing a greater amount of heat units to the oil consumed, but also the peculiar construction herein shown serves to create vortices within the burner barrel and downwardly as at 62 and has its bottom portion extending outwardly a substantial distance beyond the wall portion 40 forming a part of the oil cup;- .The burner barrel 6| tapers downwardly and thus has its lower end restricted "relative to its upper end Near the top of the inwardly and downwardly sloping portion 62, there is provided a plurality of radially disposed holes 63 which admit air from the exterior of the burner barrel Bl through these openings 63 into the burner barrel immediately above the combustion chamber and serve to supply additional oxygen to the flame and results in much better combustion. In this portion 60 of the burner barrel there is also provided a plurality of upwardly and outwardly disposed openings 65 which run at an an le to the vertical as well as circumferentially around the'burner barrel as well as extending upwardly and outwardly at the same time. This causes air to pass upwardly through the horizontal portion 60 and to sweep the interior surface of the burner barrel 6| in the type of a cyclone or a whirlwind and thus wipe the carbon from the burner barrel before it has any chance to become oxidized thereon.

The housing l6 of the apparatus, immediately above the upper edge of door 25 and immediately above-the upper edge of burner barrel 5| has an annular inturned flange 10 which leaves a small amount of space H between the flange l0 In Figure '7 there is shown one manner of installing the apparatus within the walls 75 of a suitable building. .The portions 30 and 3| have connected thereto suitable pipes 16 and 1'! which extend around the barn near the walls thereof, and pass through to the exterior of the barn by means of a common pipe 18.

In Figure 8 there is shown another type of installation in which like reference characters will apply but in which one of the branch members, as for example branch 30, is closed with a suitable closure'and a single pipe leads from the other branch 3|, and after being led around the barn in a suitable manner, is passed to the exterior of the barn and upwardly through a suitable smokestack 82.

In Figure 8 it is noted how the air circulates within the enclosure such as a tobacco barn and it is to be understood that this tobacco barn is filled with tobacco being cured, but this is not shown. The heat created by the oil burner and the housing as well as issuing from the pipe 80, ofcourserises upwardly to the top of the barn and the barn being closed and the air becoming cooled as it goes toward the top of the barn, itpasses downwardly and enters through the openings I I in the annular member I 0 and in through the openings between the spokes l3 and up around and through the oil burning apparatus where moisture extracted from the tobacco leaves is supplied to the burner flame and thus the proper amount of moisture is supplied to the burner flame without the necessity of admitting a great amount of fresh air to the interior of the building, which would result in heat losses.

It is therefore seen that by utilizing the oxygen released during the curing process and feeding it to the flame, that a great saving is made in the cost of fuel for curing a barn of tobacco.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

Iclaim:

1. An oil burner comprising inner and. outer annular walls joined together at their lower portions and diverging away from each other as they progress upwardly, thus forming an annular oil cup, the inner wall defining a central opening, the inner wall being in the form of a series of substantiall vertically disposed inner segments spaced from each other and extending entirely around the burner and a second series of substantially vertically disposed outer segments spaced from each other and being radially offset from the first series of segments, a plurality of radially and vertically disposed walls joining the side edges of the outer segments to the side edges of the inner segments, a top cast integral with the upper ends of the two sides of segments and the top edges of the radially and vertically disposed walls, thus closing the upper ends of alternate spaces between the radially and vertically disposed walls, said top having integral therewith an upwardly extending and centrally disposed truncated conical portion or flue open at its upper end, the said closed top having holes in those portions which close the space between the upper ends of alternate sets of radially and vertically disposed walls to allow air to pass upwardly therethrough, the base portion of the truncated conical portion having upwardly extending and radially directed openings therethrough to allow air to pass outwardly above the oil cup, each of the inner segments having a hole therethrough near its upper end to allow air to pass into the upper portion of the oil cup, the outer annular wall being substantially of the same height as the inner annular wall, an annular burner barrel being of cast material and having substantially thick walls, said barrel having a restricted base portion whose inner edge is adapted to rest on the upper edge of the outer annular wall of the oil cup, said barrel having a plurality of radially directed and circumferentially disposed holes at its junction point with its restricted base portion, and said base portion. having a plurality of upwardly extending and tangentially directed openings therein.

2. An oil burner comprising inner and outer annular walls integral with each other at their lower edges and diverging away from each other as they progress upwardly, thereby forming an annular oil cup, the inner Wall being corrugated to form upwardly directed air passages on the exterior of the inner wall and also upwardly directed air passages on the interior surface of the inner wall, the inner wall having cast integral therewith a horizontal portion covering the inner air passages and the horizontal portion having vertically disposed holes therethrough communicating with the inner air passages, the horizontal portion merging with a truncated conical portion open at its upper end, the inner wall having spaced radially directed, circumferentially disposed openings therein situated at the upper end of the inner air passages, immediately below the horizontal portion, and the truncated conical portion having radially directed and upwardly and outwardl extending openings in the lower portion thereof whose upper ends coincide with the upper surface of the horizontal portion, an annular cast burner barrel having a horizontally disposed rib portion and its lower inner surface adapted to rest on top of the outer wall, said burner barrel having a plurality of horizontally disposed and radially directed openings disposed immediately above its horizontal portion and also having a plurality of radially directed and upwardly and outwardly inclined bores in its lower portion and disposed above the first named bores in the burner barrel, the last named bores in the burner barrel being directed at an angle to the radius of the burner barrel.

his PERCY X GAINEY.

mark Witnesses to mark:

J. M. SURLER. N. LEDWELL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,837,763 DeLancey Dec. 22, 1931 1,885,891 Breese Jr. Nov. 1, 1932 1,915,903 Schroeder, et a1. June 27, 1933 2,223,301 Dowless Nov. 26, 1940 2,262,922 Castle et a1 Nov. 18, 1941 2,288,083 Gainey June so, 1942 2,357,587 Hammel Sept. 5, 1944 

